Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:53:22 2012 Optimize a model with 5547 rows, 149 columns and 11094 nonzeros Presolve removed 4007 rows and 0 columns Presolve time: 0.23s Presolved: 1540 rows, 149 columns, 11288 nonzeros Variable types: 0 continuous, 149 integer (149 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.880359e+01, 687 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.80359 0 147 7.00000 18.80359 169% - 0s H 0 0 8.0000000 18.80359 135% - 0s 0 0 18.35933 0 147 8.00000 18.35933 129% - 0s 0 0 18.20490 0 146 8.00000 18.20490 128% - 0s 0 0 18.11727 0 147 8.00000 18.11727 126% - 1s 0 0 18.08598 0 149 8.00000 18.08598 126% - 1s 0 0 18.08057 0 148 8.00000 18.08057 126% - 1s 0 0 18.07846 0 149 8.00000 18.07846 126% - 1s 0 0 18.07278 0 148 8.00000 18.07278 126% - 1s 0 0 18.07133 0 148 8.00000 18.07133 126% - 2s H 0 0 9.0000000 18.07133 101% - 2s 0 0 18.06100 0 149 9.00000 18.06100 101% - 2s 0 0 18.04968 0 148 9.00000 18.04968 101% - 2s 0 0 18.04723 0 148 9.00000 18.04723 101% - 2s H 0 0 10.0000000 18.04723 80.5% - 2s 0 0 18.04624 0 149 10.00000 18.04624 80.5% - 2s 0 0 18.04537 0 148 10.00000 18.04537 80.5% - 3s 0 2 18.04330 0 148 10.00000 18.04330 80.4% - 3s 121 99 14.06228 4 73 10.00000 17.63126 76.3% 103 5s 647 252 11.29954 20 58 10.00000 13.99313 39.9% 81.7 10s Cutting planes: Clique: 135 Explored 1128 nodes (84896 simplex iterations) in 14.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%